using System;

using System.Xml;

​

public class Program

{

    public static void Main()

    {

        var XMLDoc1 = new XmlDocument();

​

        const string SOAPENV_NS = "http://schemas.xmlsoap.org/soap/envelope/";

        const string WKSP_NS = "http://www.juniper.es/webservice/2007/";

        XmlDeclaration xmlDeclaration = XMLDoc1.CreateXmlDeclaration("1.0", "utf-16", null);

        //root

        var XMLsoapenv = XMLDoc1.CreateElement("soapenv", "Envelope", SOAPENV_NS);

        XMLsoapenv.SetAttribute("xmlns:soapenv", SOAPENV_NS);

        XMLsoapenv.SetAttribute("xmlns", WKSP_NS);

        //XMLDoc1.AppendChild(XMLsoapenv);

        //header

        var XMLsoapenvHeader = XMLDoc1.CreateElement("soapenv", "Header", SOAPENV_NS);

        XMLsoapenv.AppendChild(XMLsoapenvHeader);

        var XMLsoapenvBody = XMLDoc1.CreateElement("soapenv", "Body", SOAPENV_NS);

        XMLsoapenv.AppendChild(XMLsoapenvBody);

        //XMLDoc1.AppendChild(XMLsoapenv);

        var XMLHotelAvail = XMLDoc1.CreateElement("HotelAvail", WKSP_NS);

        var XMLHotelAvailRQ = XMLDoc1.CreateElement("HotelAvailRQ", WKSP_NS);

        XMLHotelAvailRQ.SetAttribute("Version", "1.1");

        XMLHotelAvailRQ.SetAttribute("Language", "lang");

        var XMLLogin = XMLDoc1.CreateElement("Login", WKSP_NS);

        XMLLogin.SetAttribute("Email", "XXX");

        XMLLogin.SetAttribute("Password", "XXX");

        XMLHotelAvailRQ.AppendChild(XMLLogin);

        var XMLPaxes = XMLDoc1.CreateElement("Paxes", WKSP_NS);

        var XMLPaxFirstChild = XMLDoc1.CreateElement("Pax", WKSP_NS);

        XMLPaxFirstChild.SetAttribute("IdPax", "1");

        XMLPaxFirstChild.SetAttribute("Age", "XXX");

        XMLPaxes.AppendChild(XMLPaxFirstChild);

        XMLHotelAvailRQ.AppendChild(XMLPaxes);

        var XMLHotelRequest = XMLDoc1.CreateElement("HotelRequest", WKSP_NS);

        var XMLSearchSegmentsHotels = XMLDoc1.CreateElement("SearchSegmentsHotels", WKSP_NS);

        var XMLSearchSegmentHotels = XMLDoc1.CreateElement("SearchSegmentHotels", WKSP_NS);

        XMLSearchSegmentHotels.SetAttribute("Start", "XXX");

        XMLSearchSegmentHotels.SetAttribute("End", "XXX");

        XMLSearchSegmentHotels.SetAttribute("DestinationZone", "628");

        var XMLCountryOfResidence = XMLDoc1.CreateElement("CountryOfResidence", WKSP_NS);

        XMLSearchSegmentHotels.AppendChild(XMLCountryOfResidence);

        XMLSearchSegmentsHotels.AppendChild(XMLSearchSegmentHotels);

        XMLHotelRequest.AppendChild(XMLSearchSegmentsHotels);

        var XMLRelPaxesDist = XMLDoc1.CreateElement("RelPaxesDist", WKSP_NS);

        var XMLRelPaxDist = XMLDoc1.CreateElement("RelPaxDist", WKSP_NS);

        var XMLRelPaxes = XMLDoc1.CreateElement("RelPaxes", WKSP_NS);

        var XMLRelPax = XMLDoc1.CreateElement("RelPax", WKSP_NS);

        XMLRelPax.SetAttribute("IdPax", "1");

        XMLRelPaxes.AppendChild(XMLRelPax);

        XMLRelPaxDist.AppendChild(XMLRelPaxes);

        XMLRelPaxesDist.AppendChild(XMLRelPaxDist);

        XMLHotelRequest.AppendChild(XMLRelPaxesDist);

        XMLHotelAvailRQ.AppendChild(XMLHotelRequest);

        XMLHotelAvail.AppendChild(XMLHotelAvailRQ);

        XMLsoapenv.AppendChild(XMLHotelAvail);

        //XMLsoapenvBody.AppendChild(XMLHotelAvail);

        //XMLsoapenv.AppendChild(XMLsoapenvBody);

        XMLDoc1.AppendChild(XMLsoapenv);

​

        using (var writer = XmlWriter.Create(Console.Out, new XmlWriterSettings {Indent = true}))

        {

            XMLDoc1.Save(writer);

        }

    }

}